Toshiba EQUIUM L300D Laptop User Manual


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1.2SystemUnitComponents 1HardwareOverview
SatelliteL300D/L305D/SatelliteProL300D/EQUIUML300D/SATEGOL300DMaintenanceManual 15
4 GPIOs (GPIO0/GPIO3 are digital GPIO shared with digital MIC interface,
GPIO1/GPIO2areanalog)forcustomizedapplications
HighqualityanalogdifferentialCDinput
2jackdetectionpinseachdesignedtodetectupto4jacks
Supportshardwaredigitalvolumecontrolfordigitalmicrophoneinput
SupportsexternalPCBEEPinputandbuilt-indigitalBEEPgenerator
KBC/EC(KeyboardController/EmbeddedController)
AKBCWINBONDWPCE775LchipisusedtoserveasKBC/ECandSuperIO:
KBC
− Scancontrollerfunction
− Interfacecontrollerfunction
EC
− Powersupplysequencecontrol
− Overheatshutdownsupport
− LEDcontrol
− Beepcontrol
− DeviceON/OFF
− Coolingfanspeedcontrol
− UniversalI/Oport
− Batterycapacitycheck
− Flashmemoryreprogrammingfunction
− ECaccessinterface
− I2Ccommunicationcontrol
BatteryEEPROM
24C02equivalent(128wordsx16bits,I2Cinterface)integratedinbatterypack
− Storingrecordsofbatteryuse
ClockGenerator
RealtekRTM880T-797
− Generatingtheclocksignalrequiredforthesystem
ModemController
Built-inMDCcardwithAskey/Foxconn/Lite-On.Functionsofmodemcontroller:
Digitalsignalconductorprotection
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